Dietrich Bonhoeffer was a remarkable young theologian and pastor in World War II Germany who joined the Resistance in several plots to assassinate Hitler. His devotional books are still best sellers today. That's because, according to Eric Metaxas, Bonhoeffer was also a prophet. Metaxas, author of the New York Times #1 bestseller Bonhoeffer: Pastor, Martyr, Prophet, Spy, explains that term and what it means for all of us. Shirley Hoogstra hosts.